?? Have you ever used Tempilsticks. ?? One possible way to determine if the brazing metal is brass, free machininhg brass or an alloy. From a metallurgy table, determine the critical temp. of the brass used in this repair, and see if it flows freely with a neutral flame at that range. Mapp or propane will not work, only acetylene, RWTF


"The field is the touchstone of the man"..